CellTrack91 for Symbian
Interested to know which mobile phone mast you're connected to and want to know more about it? That's where CellTrack91 comes in!
CellTrack91 is a Symbian application which will tell you more stuff about you’re the cell you are connected to. Using it you can collect GSM information like net monitor and more.
Seems a useful application if you're nosey or someone who is a phone geek. Best of all, it's freeware!